C0663
Left Rear Wheel Speed Sensor B Intermittent/Erratic
C0663 is an OBD-II diagnostic trouble code meaning: Left Rear Wheel Speed Sensor B Intermittent/Erratic. Common causes: damaged wheel speed sensor, sensor contamination. Estimated repair cost: $56–167.
Symptoms
- ABS/ESP indicator is on
- Unstable ABS operation
- Problems with the traction control system
- Activating the emergency system mode
Causes
- Damaged wheel speed sensor
- Sensor contamination
- Open or shorted wiring harness
- Contact corrosion
- ABS module malfunction
How to Fix
- Check the wheel speed sensor for damage
- Clean the sensor from dirt
- Check the wiring harness for opens and shorts
- Check contacts for corrosion
- If necessary, replace the sensor or wiring harness
Related codes
Error C0663 by Vehicle Brand
FAQ
What does the C0663 code mean?
C0663 is an OBD-II diagnostic trouble code that indicates: Left Rear Wheel Speed Sensor B Intermittent/Erratic
What causes a C0663 error code?
The most common causes of C0663 include: Damaged wheel speed sensor; Sensor contamination; Open or shorted wiring harness; Contact corrosion.
How do I fix a C0663 diagnostic trouble code?
To fix C0663: Check the wheel speed sensor for damage. Clean the sensor from dirt. Check the wiring harness for opens and shorts. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with C0663?
Limited driving only, diagnose soon
How much does it cost to fix C0663?
The estimated repair cost for C0663 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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